Reply to Thread

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.

User Name:

Password

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

Please enter a valid email address for yourself.

Email Address:

Insurance

Please select your insurance company (Optional)

Log-in

User Name

Remember Me?

Password

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options

Miscellaneous Options

Automatically parse links in text

Automatically embed media (requires automatic parsing of links in text to be on).

Automatically retrieve titles from external links

Topic Review (Newest First)

06-17-2012 02:38 PM

Mr big block!

My Griffin radiator is a 2 row 1" tubes. I have the 35 gallon per hour electric pump. A 165 degree thermostat. That may be one of my problems, the thermostat is too cool. My bad i wasn't thinking about that when i put it in. I had a brain fart, lol. I would like too change the water pump to a mechanical, but that would mean i need to replace all my billet aluminum brackets as well. Another huge cost, but not as huge as a motor rebuild. I have nearly $15,000 in this motor so i need too be more careful with simple little mistakes as a thermostat. I have 2 fans on it as well, 1 pusher, and 1 puller, one at each end, in the front, and back of the radiator. Guess I need too make a couple changes. Thanks guys for your help. Love this site. So many helpful people.

06-15-2012 01:51 PM

prostreet6t9

I run a electric pump on the street.. BBC with 14/1 comp. Electric dual fans with a shroud. even on hot days it only runs 195.I've had pretty good luck with my set up.

06-15-2012 12:33 PM

65 Imp SS

Quote:

Originally Posted by Mr big block!

and a 4 core aluminum griffin radiator.

Which griffin rad do you have? I see listings for:
Pro series 2 row 1" tubes cooling for up to 400hp
HP series 2 row 1.25" tubes cooling up to 600hp
HP Max series 2 row 1.5" tubes cooling for beyond 600hphttp://www.griffinrad.com/PDFs/ProdCatGreen.pdf

06-15-2012 09:07 AM

68NovaSS

I'm running a pretty radical tunnel ram BB in my T-bucket, relatively small 3 core "T" radiator and one 14 inch puller electric fan, it never gets over 200* in traffic on a 95 degree day.

06-15-2012 07:30 AM

lmsport

I prefer a mechanical fan on a street driven big block.

Has anyone used a late model electric fan clutch on their hot rod?

06-14-2012 11:49 PM

S10 Racer

I'm not a fan of electric water pumps either. They do a poor job of supplying enough force to keep the coolant circulated. Secondly they only circulate the coolant at one speed regardless of how many RPM's the motor is turning. They are ok on a race motor where the motor is run for a quick 1/4 mile pass.

06-14-2012 10:14 PM

68NovaSS

I'm not a fan of electric water pumps on the street, but can't say either way about it's efficiency or capacity. You fans should be set up as pullers, and your thermostat probably in the 185-190 range. A lot of people make the mistake of running a cooler TS thinking it will keep the motor cooler, when in fact it doesn't allow the coolant to remain in the radiator long enough for it to do it's job dissipating heat. Keep in mind a new motor will run warm for a while.

What are your temps?

06-14-2012 10:08 PM

Mr big block!

big block 454

Iv got a big block 454 4 bolt that i built and it constantly over heats if i drive it over 45 mph. if it is pulling, and tacking over 2,500 rpm it over heats. iv got an electric meizure water pump on it with duel electric fans, and a 4 core aluminum griffin radiator. Iv tried the timing, the gas air adjustments on the carb thinking possibly to lean.. But nothing works. and the entire engine is brand new. edelbrock heads, intake, complete rotating assembly etc! Iv checked the thermostat, and gone over everything a hundred times, just cant figure it out.
Can anyone help me with this please?? Any advise i might have over looked.
Thanks guys: